https://repository.kopri.re.kr/handle/201206/5398 Sun, 05 Apr 2026 19:32:05 GMT 2026-04-05T19:32:05Z https://repository.kopri.re.kr/handle/201206/8408 Title: Evaluation of suitability of shallow ice coring site at the seashore of West Antarctica Authors: Hong, Sang-Bum; Choi, Taejin; Kang, Jung-Ho; Kim, Seong-Joong; Lee, Jeonghoon; Lee, Joohan; Hur, Soon Do Abstract: It has been known that the Southern Annular Mode (SAM), which is the large scale circulation of atmosphere in the Southern Hemisphere, contribute much to the climate change of the Antarctica and the variability of the SAM is closely related with the strength of westerly winds around the Antarctica and thus can sensitively affect on the variability of Amundsen Sea Low (ASL). However, up to date, there have been few researches to identify the natural variability of the SAM before industrial revolution in the past even though it may be critical to understand its variability in the present and future. This is the main driving factor to start the shallow ice coring program on the seashore of West Antarctica and the final goal is to reconstruct the major components of SAM (atmospheric circulation, temperature, mean sea level pressure, and so on) in the past (especially before industrial revolution, spanning the last ~ 200 years) using ice core. As a preliminary study, On the 17-19th February 2012, snow pit works and a glaciological survey during 2012 Amundsen Expedition of KOPRI were conducted in order to evaluate the suitability of shallow ice coring site (74° 21´ 45.6˝ S, 111° 20´ 54.0˝ W) of Moore Dome in the bear peninsula at the seashore of West Antarctica as the archive of the variability of ASL in the past and, as an important factor of evaluation, the ice thickness, accumulation rate, the possibility of surface melting of snow layer at the top of Moore Dome were investigated and the preliminary results will be presented Sun, 01 Jan 2012 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/8408 2012-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/8484 Title: Trend of Sea Surface Temperature Change near the Korean Peninsula since Industrialization Authors: Woo, Sung-Ho; Kim, Seong-Joong; Hur, Soon Do; Kim, Baek-Min Abstract: This study examined the change in sea surface temperature (SST) around the Korean peninsula since the industrialization and its possible cause using observation based data from the Hadley Center and the Goddard Institute of Space Studies. Since the industrialization, the SST around the Korean peninsula tends to increase towards present with multi-decadal fluctuations of a gradual reduction from the year 1888 to around 1940 and from 1950 to 1980, and marked increase from 1940 to 1950 and from 1980 to present. The ocean surface warming is larger during boreal winter than in summer and in the south sea than other regions. The multi-decadal SST fluctuations around the Korean peninsula is largely consistent with the negative phase of the Pacific Decadal Oscillation (PDO), which fluctuates with periods of about 20 to 50 years. Secondly, the Elniño-Southern Oscillation (ENSO), whose low-frequency moves along with the PDO, appears to influence the SST near Korean peninsula in some particular years, especially in recent decades. Overall, the SST around the Korean peninsula has been warming since the industrialization by about 1℃, which is about twice larger than global-mean ocean surface warming, and this long-term warming is aligned with the increase in greenhouse gas concentration as well as local factors such as the PDO. Sat, 01 Jan 2011 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/8484 2011-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/8485 Title: Southern Annular Mode and Antarctic Climate Change for the Last Glacial Maximum derived from the PMIP2 Authors: Kim, Seong-Joong; Kim, Baek-Min; Woo, Eunjin Abstract: 제2차 고기후 모델링 비교프로그램(Paleoclimate Modelling Intercomparison Program phase II, PMIP2)의 대기-해양-해빙 접합모형을 통해 얻어진 시뮬레이션 자료를 이용하여 마지막 최대 빙하기의 남극기온과 남극진동변화를 연구하였다. 마지막최대 빙하기 실험에 참여한 모형은 미 국 해양대기청의 CCSM, 독일 막스플랑크 연구소의 ECHAM3-MPIOM, 영국 기상청의 HadCM3M2, 프랑 스 라플라스 연구소의 IPSL-CM4, 프랑스 기상연구소의 CNRM-CM3, 일본 동경대 기후연구소의 MIROC3.2, 그리고 중국 대기 물리연구소의 FGOALS 모형 등이다. 7개 모형들에 의해 재현된 현 재 기후를 관측에 기초로 한 재분석 자료와 비교해 본 결과 모든 모형에서 관측에 나타나는 남 극기온의 특징들이 비교적 잘 재현되지만 기온은 다소 과소 모의하는 경향이 있다. 모든 기후모 형들에 마지막 최대빙하기의 대기 이산화탄소 농도를 포함한 온실기체, 지구공전궤도함수, 그리 고 ICE-5G 빙상 및 지형의 경계조건이 적용되었다. 마지막 최대빙하기 경계조건에 대하여 남극 대륙에서는 연평균 6˚C-11˚C 정도의 기온 감소가 재현되고, 모형평균 7˚C의 기온 감소가 재 현되었다. 제2차 고기후 모형 비교연구에서 얻어진 마지막 최대빙하기 기온 감소 범위는 빙하코 어 자료로부터 복원된 기온변화 (9˚C-15˚C 감소)에 비해 대체로 작은 기온 감소를 나타낸다. 겨울에 비해 여름의 기온 감소가 크게 나타는 특징이 있는데, 겨울에는 8˚C-12˚C의 기온 감소 가 재현되었고, 여름에는 6˚C-9˚C의 기온 감소가 재현되었다. 대륙과 해양 경계부근에서 기 온 감소가 대체로 나타나며 남극대륙 내부로 갈수록 기온 감소가 크게 나타났다. 그리고 대 Sat, 01 Jan 2011 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/8485 2011-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/8486 Title: ARCTIC OSCILLATION AND COLD SURGE CHARACTERISTICS IN THE NORTHERN HEMISPHERE AT 2009/2010 WINTER Authors: Kim, Seong-Joong; Kim, Baek-Min; Kim, Yoojin; Woo, Sung-Ho; Lee, Hyun-Ha Abstract: The cause of the cold surge occurred at 2009/2010 winter over northern hemisphere was investigated. During the boreal winter (December-January-February) of 2009/2010, the surface temperature was extremely lower than normal years by more than 5°C over North- east Asia, Europe, and North America. The cold air outbreak was due to the stronger northerly winds in troposphere at mid latitudes associated with the substantially weaker Arctic Oscillation (AO) polarity, which leads to the weaker zonal-mean zonal winds and higher geopotential height and associated marked warming anomalies at high northern latitudes, whose signals propagated from the mid-latitude stratosphere at autumn down to troposphere at winter. The marked stratospheric warm anomaly in autumn is produced by the stronger upward propagation of the stationary planetary waves which lead to the weaker znoal-mean zonal winds. Analyses indicate that the stronger wave activity is originated from Eurasia/Siberia associated with the anomalously larger snow cover during October and November. The autumn snow cover over these regions tends to increase with time and its increasing rate is becoming larger towards present in concert with the global warming. This result indicates that the anomalously increased autumn snow cover over Siberia in part led to the weakening of the AO polarity and consequent cold air outbreak for the 2009/2010 winte Sat, 01 Jan 2011 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/8486 2011-01-01T00:00:00Z